How many calories are in Lucky Charms?
A 1-cup serving of Lucky Charms weighs 36 g and carries 137 calories. Per 100 g the dry cereal runs 380 calories, which puts it mid-pack among frosted breakfast cereals. The number people usually eat is higher, because a cereal bowl rarely stops at one measured cup.
You'd need to walk about 27 minutes to burn the 137 calories in a 1-cup (36 g) serving.
How long does it take to burn off Lucky Charms?
A 1-cup (36 g) serving is 137 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:
lb
| Activity | Time to burn 137 kcal |
|---|---|
| Walking, brisk | 27 min |
| Cycling, moderate | 17 min |
| Swimming, moderate | 20 min |
| Jogging | 16 min |
| Weight training, moderate | 30 min |
Times are for a 155 lb adult at a steady pace; change the weight to see yours. The amount is set to the portion in the text (36 g); change it to what you actually ate. BodyPal works this out from your steps automatically.
On this page
- Lucky Charms quick facts
- US servings, from a single-serve box to a full cup
- Chocolate, Fruity and the marshmallows sold alone
- Added sugars are the row to watch
- How does Lucky Charms compare?
- Most popular lucky charms brands
- Lucky Charms FAQs
Lucky Charms quick facts
The numbers below come from the current US box panel as USDA records it: Branded record 2724722, "Lucky Charms Cereal" from General Mills Sales Inc., GTIN 00016000144682. There is no Foundation, SR Legacy or FNDDS entry for this cereal, so the branded panel is the whole story — and it is the better source anyway, because it is the only one that publishes added sugars.
USDA's serving for that record is 1 cup, 36 g, the same measure printed on the box. That is the column to read if you are logging a normal bowl.
| Nutrient | Per 100 g | Per 1 cup (36 g) | % Daily Value |
|---|---|---|---|
| Calories | 380 | 137 | — |
| Total fat | 3.974 g | 1.4 g | 2% |
| Saturated fat | 0.762 g | 0.3 g | 1% |
| Carbohydrate | 83.417 g | 30.0 g | 11% |
| Dietary fiber | 6.372 g | 2.3 g | 8% |
| Total sugars | 33.463 g | 12.0 g | — |
| Added sugars | 32.795 g | 11.8 g | 24% |
| Protein | 7.604 g | 2.7 g | 5% |
| Sodium | 624 mg | 225 mg | 10% |
% Daily Value is based on a 2,000-calorie diet.
Verified nutrition data
Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →
Cholesterol is zero, as you would expect from a grain cereal, and a cup carries 77 mg of potassium, 2% of the Daily Value. Trans fat sits on the record at 0.007 g per 100 g, small enough to be a rounding artifact rather than a row worth printing. Total sugars have no Daily Value under the FDA label rules, which is why that cell is blank while added sugars carries a percentage.
US servings, from a single-serve box to a full cup
| Serving | Weight | Calories |
|---|---|---|
| 1 oz | 28.3 g | 108 kcal |
| One bowlpak bowl | 28 g | 106 kcal |
| One single-serve box | 23 g | 87 kcal |
| One cup, the label serving | 36 g | 137 kcal |
| One single-serve container | 48 g | 182 kcal |
| Per 100 g | 100 g | 380 kcal |
Only two of those are USDA household measures: the 36 g cup and the 48 g single-serve container. The 28 g bowl, the 23 g box and the ounce are our own arithmetic from the USDA 100 g figure, not USDA servings — useful, because those are the pack sizes that actually show up in a lunchbox or a hotel breakfast tray.
One wrinkle worth knowing: USDA also carries an older Singlepak record at 390 calories per 100 g, which makes the same 23 g box 90 calories instead of 87. The gap is the rounding on an older label panel, not a different cereal. Either number is inside the noise of how much cereal ends up in the bowl.
The gap between pack sizes is the real lesson. A bowlpak bowl and a single-serve container are both "one serving" in everyday language, yet one is 106 calories and the other 182 — a 76-calorie spread that comes entirely from the size of the container someone handed you.
Chocolate, Fruity and the marshmallows sold alone
| Version | Per 100 g | Typical serving | Calories |
|---|---|---|---|
| Original | 380 kcal | 1 cup (36 g) | 137 kcal |
| Chocolate | 382 kcal | 1 cup (36 g) | 138 kcal |
| Fruity | 400 kcal | 1 cup (36 g) | 144 kcal |
| St Patrick's Day edition | 379 kcal | 1 cup (36 g) | 136 kcal |
| Just Magical Marshmallows | 389 kcal | 30 g bag serving | 117 kcal |
| Lucky Charms Cereal Bars | 396 kcal | 1 bar (70 g) | 277 kcal |
| Lucky Charms Mini Treat Bar | 424 kcal | 1 bar (14 g) | 59 kcal |
Across the four boxed cereals, the whole spread is eight calories per cup. Chocolate Lucky Charms is 138 against the original's 137; the St Patrick's Day printing is 136, a different marshmallow color scheme on what is nutritionally the same cereal. Fruity is the outlier at 144 a cup, and USDA lists it only with a milk-inclusive panel, so the 36 g cup figure there is our scaling from its 400 calories per 100 g.
What changes between them is not the calorie count but the mix. Chocolate drops protein to 5.29 g per 100 g and lifts fat to 4.6 g, while sodium falls to 546 mg. Fruity drops fiber to 5 g per 100 g against the original's 6.372 g. If you are choosing between boxes for a reason other than taste, fiber and protein are the rows that separate them, not calories.
Then there is the bag of marshmallows sold on their own: 117 calories per 30 g serving and 74.88 g of sugar per 100 g, more than double the 33.463 g of the mixed cereal. Take the oat pieces away and what's left is essentially candy — 1.84 g of protein and 0.054 g of fiber per 100 g. The bars are a separate food entirely; a 70 g cereal bar is 277 calories, twice a cup of the cereal it is named after.
Added sugars are the row to watch
The calorie number is unremarkable. The added sugars row is not. A 36 g cup delivers 11.8 g of added sugars, 24% of the FDA Daily Value of 50 g — the highest percentage anywhere in the panel, and nearly all of the cup's 12.0 g of total sugars. Only about 0.2 g of the sugar in a cup comes from anywhere other than the sugar bin.
Sodium is second at 225 mg, 10% of the day, roughly a tenth of a teaspoon of table salt. Protein is the weak row: 2.7 g, 5% of the Daily Value, which is why a bowl on its own tends not to hold anyone until lunch. Milk, yogurt or an egg alongside is doing most of the staying-power work.
The pleasant surprise is fiber. At 6.372 g per 100 g, a cup gives 2.3 g — 8% of the Daily Value, and better than most sweetened cereals manage. The Dietary Guidelines for Americans point at whole grains and less added sugar in the same breath, and this cereal splits that verdict cleanly: decent on the grain side, expensive on the sugar side. MyPlate's grain guidance is the practical version — make half your grains whole, and count what the sweetened ones cost you in added sugars.
Two cups, which is what a full breakfast bowl often holds, is 274 calories, 23.6 g of added sugars and 450 mg of sodium. That is 47% of a day's added sugars before you have eaten anything else.
How does Lucky Charms compare?
| Cereal | Per 100 g | US serving | Calories |
|---|---|---|---|
| Lucky Charms | 380 kcal | one cup, 36 g | 137 kcal |
| Cinnamon Toast Crunch | 419 kcal | 3/4 cup, 31 g | 130 kcal |
| Froot Loops | 374 kcal | one container, 42 g | 157 kcal |
| Frosted Flakes | 364 kcal | one container, 60 g | 218 kcal |
Our take: the per-100-g column and the per-serving column disagree, and the serving column is the one you eat. Frosted Flakes is the lightest of the four per 100 g at 364 and the heaviest per serving at 218, because its container holds 60 g. Cinnamon Toast Crunch is the opposite — densest at 419 per 100 g, yet the smallest bowl of the four at 130, on a 31 g serving. Lucky Charms sits in the middle on both, and beats all three on protein per 100 g at 7.604 g. If you are picking a sweetened cereal and logging it honestly, weigh the bowl once; the box's serving size is the variable doing the damage, not the recipe.
Most popular lucky charms brands in the United States
Ranked by how widely each product appears among foods sold in the United States, from the BodyPal food database of over 3.3 million products. Calories are the figures printed on each Nutrition Facts label, checked against USDA FoodData Central.
| Product | Calories (per 100 g) |
|---|---|
| Lucky Charms Cereal | 380 cal |
| Lucky Charms Cereal Bowlpak | 380 cal |
| Lucky Charms Cereal Singlepak | 390 cal |
| Chocolate Lucky Charms Cereal | 382 cal |
| Fruity Lucky Charms Cereal | 400 cal |
| Lucky Charms Just Magical Marshmallows | 389 cal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels / USDA FoodData Central.
Lucky Charms FAQs
How many calories are in a bowl of Lucky Charms?
A 28 g bowlpak bowl is 106 calories and the 36 g label cup is 137. A deep breakfast bowl filled by eye often holds closer to 48 g, the size USDA lists for the single-serve container, which is 182 calories before any milk goes in.
How many calories are in 1 cup of Lucky Charms?
One cup is 36 g and 137 calories, the serving printed on the current box. That cup carries 30.0 g of carbohydrate, 2.7 g of protein and 1.4 g of fat. Pour it into a measuring cup once; the 48 g single-serve container, at 182 calories, is closer to what a bowl holds.
How much sugar is in Lucky Charms?
One cup holds 12.0 g of total sugars, and 11.8 g of that is added sugars, which is 24% of the FDA Daily Value of 50 g. Per 100 g the cereal is 33.463 g of total sugars. Two cups would put you near half a day's added sugars before lunch.
How much protein does Lucky Charms have?
A 36 g cup gives 2.7 g of protein, 5% of the Daily Value, from 7.604 g per 100 g. That is thin for a standalone breakfast. Milk, yogurt or eggs alongside do the real work; the cereal is mostly carbohydrate, 30.0 g of it per cup.
Is Lucky Charms high in sodium?
One cup has 225 mg of sodium, 10% of the 2,300 mg Daily Value, or about a tenth of a teaspoon of table salt. Per 100 g that is 624 mg, high for something this sweet, though the serving is small. Two cups reach 450 mg, just under a fifth of the day.
How many calories are in Lucky Charms with milk?
The cereal alone is 137 calories per cup and the milk sits on top of that, depending on what you pour. Watch for USDA rows listing a 159 g serving of cereal plus half a cup of skim milk: multiplying the dry per-100-g value by 159 g returns 620, and that number is wrong.
How many calories are in Chocolate Lucky Charms?
Chocolate Lucky Charms is 138 calories per 36 g cup, one calorie above the original, at 382 per 100 g. The cocoa pieces shift the mix rather than the total: protein drops to 5.29 g per 100 g and fat rises to 4.6 g. Sodium is lower, 546 mg per 100 g.
What is a serving size of Lucky Charms?
The label serving is 1 cup, 36 g, at 137 calories. Packs come in other sizes: a 28 g bowlpak bowl at 106 calories, a 23 g single-serve box, and a 48 g container at 182. Most people pour somewhere between the bowl and the container without measuring anything at all.
Similar foods
- Salami — 102 cal for 3 slices
- Torta — 215 cal per serving
- Summer Sausage — 203 cal for 4 slices
- Prime Rib — 340 cal for 3 oz slice
- Coconut — 283 cal per cup, shredded
- Brie — 95 cal per oz
Count it without the math
Point the camera at the bowl and BodyPal counts the cereal for you, marshmallows and all.
